SMJ44C251B-12SVM
Video DRAM, 256KX4, 120ns, CMOS, CDIP28Manufacturer: Texas Instruments
Categories: DRAMs
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The Texas Instruments SMJ44C251B-12SVM is a 1048576-bit Video DRAM with a memory organization of 256K x 4 bits. This component features a maximum access time of 120ns and operates using CMOS technology. It supports FAST PAGE memory access mode and includes CAS BEFORE RAS/HIDDEN REFRESH functionality. The SMJ44C251 series device is housed in a 28-lead ceramic dual-in-line package (CDIP28), with through-hole mounting. Designed for operation across a wide temperature range from -55°C to +125°C, it requires a supply voltage of 5V nominal, with a maximum of 5.5V. This DRAM is suitable for applications requiring high-speed video memory, including graphics controllers and display systems.
Additional Information
Series: SMJ44C251RoHS Status: Manufacturer Lead Time: Product Status: DiscontinuedPackaging: Datasheet:Download Free CAD Model:
Technical Details:
| Length | 36.8300 |
| Width | 2.9200 |
| Technology | CMOS |
| Access_Mode | FAST PAGE |
| Access_Time_Max | 120.0000000000000000 |
| Additional_Feature | CAS BEFORE RAS/HIDDEN REFRESH |
| JESD_30_Code | R-CDIP-T28 |
| Memory_Density | 1048576.0000000000000000 |
| Memory_IC_Type | VIDEO DRAM |
| Memory_Organization | 256KX4 |
| Memory_Width | 4 |
| Number_of_Functions | 1 |
| Number_of_Ports | 2 |
| Number_of_Terminals | 28 |
| Number_of_Words | 262144.0000000000000000 |
| Number_of_Words_Code | 256k |
| Operating_Mode | Asynchronous |
| Operating_Temperature_Max | 125.0 |
| Operating_Temperature_Min | -55.0 |
| Output_Characteristics | 3-State |
| Package_Body_Material | CERAMIC, METAL-SEALED COFIRED |
| Package_Code | DIP |
| Package_Equivalence_Code | ZIP28,.1 |
| Package_Shape | Rectangular |
| Package_Style | IN-LINE |
| Refresh_Cycles | 512 |
| Screening_Level_Reference_Standard | 38535Q/M;38534H;883B |
| Seated_Height_Max | 13.0800 |
| Standby_Current_Max | 0.015000000000000 |
| Supply_Current_Max | 100.000000000000000 |
| Supply_Voltage_Max | 5.50000 |
| Supply_Voltage_Min | 4.50000 |
| Supply_Voltage_Nom | 5 |
| Surface_Mount | No |
| Terminal_Form | THROUGH-HOLE |
| Terminal_Pitch | 1.270 |
| Terminal_Position | Dual |
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